A003435Number of directed Hamiltonian circuits on n-octahedron with a marked starting node.

8, 192, 11904, 1125120, 153262080, 28507207680, 6951513784320, 2153151603671040, 826060810479206400, 384600188992919961600, 213656089636192754073600, 139620366072628402087526400, 106033731334825319789808844800

The first term appear at position 11.

14159265358979323846264338327950288…
position 11
termsstringfirst positionoccurrences
1811100,001,839
281922,94399,864
3819211904not within 1,000,000,0000

Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.